Wristwatch



FIG. 1 is a top right perspective view of an ornamental design for awristwatch showing my new design;

FIG. 2 is a top left perspective view thereof;

FIG. 3 is a bottom left perspective view thereof

FIG. 4 is a bottom right perspective view thereof;

FIG. 5 is a front view thereof, the rear view being a mirror image;

FIG. 6 is a top view thereof; and,

FIG. 7 is a right side view thereof, the left side view being a mirrorimage.

The ornamental design for a wristwatch, as shown and described.